Bridging the Physical and Digital Worlds

4K allows anyone to store physical assets on-chain by transforming real-world items into physically-backed NFTs.

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The Physical-Digital Bridge

Store Physical Assets On-Chain.

4K is the world’s most trusted way to bring real-world items on-chain. The 4K Protocol enables anyone to freely trade physical assets across decentralized blockchains as physically-backed NFTs.

$10 million secured

Total assets secured and growing quickly

Backed by the best


Why NFT a Physical Item?

We're building a new Web3 primitive — transforming the way physical assets can interact with the blockchain and enabling humanity to transact in trustless, permissionless, and never-before-seen ways.


Unlock new ways to leverage your physical assets

  • Fractionalization

  • Synthetics

  • Borrowing & Lending

  • Interoperability


Avoid high fees that come with legacy Web2 platforms

  • 1% Seller Fee

  • Buyer Pays Gas

  • No Chargebacks

  • Instant Settlements


Tokenize your merchandise for the Web3 era

  • Build value for brand evangelists

  • Hand off inventory and shipping logistics

  • Plug into Web3 by converting your product line into NFTs


Future Use Cases

  • Gaming

  • DAOs

  • Financial Products

  • Defi

  • Social Networks

  • Interoperability

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Two core components

Marketplace + Protocol

4K consists of a marketplace and protocol that are designed to seamlessly on-ramp physical assets.


Meet our Physical NFT Marketplace

The 4K Marketplace is a decentralized Physical NFT exchange and aggregator. Discover and swap assets across chains using the full power of Web3.

Low fees

Only 1% fee for sellers. Buyer pays gas. Far better than legacy Web2 platforms.

Built for Physical Assets

Seamless transactions for on-chain physical items. Buy and sell without managing an IRL inventory.


You own the items. Redeem your physically-backed NFT for the physical asset at any time.


Off-chain order books. On-chain settlements. No middleman.

Blob Material


The 4K Protocol Vision

The 4K Protocol is built with interoperability, decentralization, and composability in mind to support an ecosystem of people, projects, platforms, and communities.


Guardians are nodes on the network that store physical assets and approve minting of physically-backed NFTs.

Physical Validators

Physical Validators are nodes on the network that coordinate authenticators and appraisers to determine authenticity and asset value.

Physical Oracles

Audit Oracles keep Guardians accountable by physically auditing the assets stored. Physical Asset Pricing Oracles provide a price feed to enable DeFi integrations.


The 4K Protocol is the bridge that enables physically-backed NFTs to move across multiple L1s and L2s without a working bridge. Even on non-EVM compatible blockchains.


How does it work?

The 4K Protocol is a fundamental building block for the composable ecosystem of Web3. Tokenizing physical assets opens the door for countless unexplored future applications in DeFi, Merchandising, and the Metaverse.


Submit a quick intake form with information about your item.


Send in your item and receive an NFT after it has been verified.

Become a partner

Join the Network

Interesting in being a partner? If you’re a storage provider, developer, or authenticator, drop us a line at

Get involved

Help us build the future.

Become a network node or explore branded partnerships. Get incentivized for your contributions.



Leverage 4K Protocol’s real world infrastructure and easily build your decentralized application.

Coming soon

Provably-fair drops

The perfect tool to release or drop items. Leveraging Chainlink’s VDF function and Proof-of-Capital, create fair and transparent drops.

Coming soon
Web3 Merchandising

Web3 Merchandising

Tokenizing merch for brands, companies, and communities. Just like Unisocks.

Coming soon


Built with the future in mind. You will be able to bridge your 4K NFTs onto all major L1s and L2s without a working bridge. Even non EVM compatible chains.

Coming soon

What will you nft?

Turn your assets into NFTs

4K offers the most trusted way to turn your assets into NFTs.

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